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How's that survivalship bias? It's taking X companies, looking forward Y years, and then contrasting the qualities of the successful ones to the rest. But, the
by ap22213 10y ago
How's that survivalship bias? It's taking X companies, looking forward Y years, and then contrasting the qualities of the successful ones to the rest. But, the sample doesn't change midstream, does it? (not familiar with the book, but the quote implies that)
- ryandrake 10y agoNo, what he's doing is taking X successful companies (and X' similar but unsuccessful companies), looking BACK for Y years, and looking at the Z things that the X companies did differently than the X' companies, attributing a causal relationship between those activities and success. The flaw, of course, is he ignores other companies that ALSO did Z but were not successful.